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Apple II
,The Apple IIc is the fourth model in the Apple II series. It was introduced shortly after the launch of the original Macintosh in 1984. The c in the name stands for compact. It is essentially a remarkably compact version of the Apple IIe. The IIc has a built-in floppy disk drive, and was often sold with its matching monitor.
The Apple IIgs is the final model in the Apple II series, equipped with a backwards-compatible 16-bit 65816 CPU with and a Macintosh-modelled OS.
All machines use a keyboard that cannot communicate multiple simultaneous keypresses, which makes playing games by keyboard difficult. However all generations of machine have analogue and trigger inputs, which are most commonly used for two two-axis analogue joysticks with two buttons, accepted by the majority of games.